Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
ratte
←
Old English
ræt
(inherited)
←
Proto-Germanic
*rattaz
(inherited)
→
English
rat
(inherited)
→
Middle English
raton
(affix)